UAX #9
Bidirectional layout
Visual ordering and cursor mapping for mixed LTR and RTL runs.
Open source
UniWorld
One implementation of the Unicode text algorithms your users already depend on: bidirectional layout, line breaking, grapheme boundaries, normalization, display width, and safe truncation. Ship the same behavior in Rust, Python, JavaScript, C, Go, and in the editor or shell through first-party tools.
Canonical hub (uniworld.world)
The short domain uniworld.world is routed to this page so PyPI, README files, and talks can point at a stable human URL. What you see here is the map of the ecosystem: where install commands live, where long-form documentation is maintained, and how the pieces fit together. Deep prose (architecture, test counts, script tables) stays on the registries and in the GitHub tree so it stays versioned next to the code.
Where full documentation and guides live
Together these links satisfy the full documentation story: install, architecture, scripts covered, build instructions, and the Unicode stress showcase.
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PyPI project page
The published Python package page carries the long project description: problem statement, feature list, quick start, build and test, scripts covered, and repository layout pointers. Start here when you install with
pip. -
GitHub repository
github.com/uniworld hosts the root README,
docs/, issue tracker, and CI. Clone here for C FFI, Go wrappers, WASM builds, and extension sources. -
Language registries
Each registry mirrors README material for that ecosystem: crates.io, npm, the VS Code Marketplace, and the PowerShell Gallery.
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Unicode showcase output
The stress document rendered through the pipeline is published as UniWorld_Unicode_Showcase_TEST_OUTPUT.md in the repo. It demonstrates breadth across scripts and emoji sequences.
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Newsletter and contact
Release announcements and related writing use the mailing list on the A Guy With AI home page.
Why this exists
Text bugs are not edge cases. Emoji split in half, combining marks orphaned by backspace, look-alike strings that fail equality checks, broken RTL mixed with numbers, Thai and Khmer without dictionary breaks, and terminals that miscount CJK columns all come from the same gap: incomplete Unicode pipeline support.
The Consortium publishes the algorithms; UniWorld implements them in one audited core and ships the same rules to every binding so your stack agrees on boundaries and widths end to end.
What you get (at a glance)
Detailed tables and conformance notes appear in the PyPI readme and GitHub docs; this is the fast scan.
UAX #14
Line breaking
Rule-based breaks plus dictionary support where scripts need it.
UAX #29
Segmentation
Grapheme, word, and sentence boundaries for editing and truncation.
UAX #15
Normalization
NFC, NFD, NFKC, NFKD for canonical and compatibility forms.
East Asian width
Display width
Terminal-safe column counts, including wide emoji and CJK.
Tools
Editor and shell
VS Code extension and PowerShell module expose inspect and transform commands.
Install by platform
Commands below are the usual entry points; see each link for version pins and platform notes.
Rust
cargo add uniworld
Python
pip install uniworld
JavaScript / WASM
npm install uniworld
C and Go
Build from GitHub: C header via cbindgen, Go under bindings/go/.
Repository
VS Code
ext install aguywithai.uniworld
PowerShell
Install-Module UniWorld
Why one core matters
- Same tests everywhere. Language bindings call into the same Rust implementation, so CI for the core is CI for your behavior.
- Spec-shaped APIs. Boundaries and widths match what the Unicode annexes describe, which keeps renderers, editors, and CLIs aligned.
- Tools included. The extension and module are first party, not samples, so you can debug text without writing glue code first.
How it was built
UniWorld was conceived and executed on an aggressive timeline using HAIMU, the development methodology behind A Guy With AI. For a narrative version of the build story, follow the links from the GitHub readme and podcast episodes linked on aguywithai.world.
More open-source projects: Open source hub GrandBeta: grandbeta.world